Intensity thresholds for post exercise hypotension

Hypotension;Exercise - Physiological aspects;Hypertension - Exercise therapy

Smelker, ChristyFoster, C. ;

University of Wisconsin

关键词: Hypotension;    Exercise - Physiological aspects;    Hypertension - Exercise therapy;   

Others  :  https://minds.wisconsin.edu/bitstream/handle/1793/48961/Osmelkerchristy2002.PDF?sequence=1&isAllowed=y

瑞士|英语

来源: University of Wisconsin

【 摘 要 】

Hypertension is a risk factor for heart disease that responds to both acute and chronicexercise. This study evaluates the effects of different exercise intensities on post exercisehypotension in hypertensive subjects. Subjects (N = 10) were healthy, mildlyhypertensive individuals. Each performed a maximal test to allow for intensityprescription, then completed four randomly ordered 120min exercise trials and onecontrol trial. The exercise trials consisted of 25 min cycling at 70, 80, 90, or 100% of theV02 at the ventilatory threshold (VT) (e.g. quite easy to rather hard). Blood pressure wasmeasured at 0,30,60,90 and 120 minutes of each trial. There was a significant (~50.05)reduction in systolic blood pressure at 3(~6, 0,90 and 120 min for 100%V f, at 60,90 and120 min for 90%VT, at 90 and 120 min for 80%VT and at 120 min for 70%VT. Therewas co change with diastolic blood pressure. Mean arterial pressure was significantlyreduced at 60,90 and 120 min for 90%VT and at 60 and 90 min of 100%VT. Weconclude that exercise acutely lowers blood pressure in mildly hypertensive individualsand that a higher intensity exercise session may have a greater effect.